I know my GP wouldn't be keen on upping my dose of estradiol, and I honestly don't think it's necessary because when I'm not taking any prog at all I have very few problems.
When I was taking 200mg x 12 days, everything would be fine while I was taking it and for a couple of days after, but then for the next week I would have really bad insomnia. It was like my body was having trouble adjusting to the up and down of my prog levels.
I have found, with my experience and reading about prog, that it can have paradoxical effects depending on the person. Some people experience a sedative effect and other people have the opposite effect. It appears I have a bit of both.
As Hurdity just said, she feels the build up on 200mg, yet when I took 200mg for 12 days I had no problems while I was taking it, but the effect was horrible when I stopped. I just think it just depends on how everyone reacts to it.
Of course I'm still not absolutely certain the problem is the Utro. I also have to factor in the diazepam reduction I am doing. I've only been off the Utro now for 2 full days, and my sleep is still not great, although it's not getting worse like it was at the end of last week, so I will have to see how things are by the end of the week.